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Credit: Getty Images

AURORA, CO - JANUARY 5: An Aurora, Colorado police officer packs up tactical gear used to subdue a gunman who killed four people at a town home complex January 5, 2013 in Aurora, Colorado. Aurora SWAT team members shot a gunman after he went to a second-floor window and fired at police. The gunman also allegedly fatally shot two men and a woman that he had taken hostage. One woman managed to escape from an upstairs back window, ran from the home and called police just before 3 a.m., said Cassidee Carlson, Aurora police spokeswoman. (Photo by Marc Piscotty/Getty Images)